Determination of the prevailing n-butenes dimerization mechanism over nickel containing Al-MCM-41/ZSM-5 mixed-phase catalysts. Issue 10 (9th April 2019)

• Record Type: Journal Article
• Authors: Alscher, Felix; Nadolny, Fabian; Frenzel, Henrik; Knossalla, Johannes; Peitz, Stephan; Borovinskaya, Ekaterina; Breitkopf, Cornelia; Franke, Robert; Reschetilowski, Wladimir
• Is Part Of: Catalysis science & technology. Volume 9:Issue 10(2019)
• Page Start: 2456
• Page End: 2468
• Publication Date: 2019-04-09
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/c9cy00055k
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : Novel approaches to evaluate the contribution of the cationic or coordinative reaction mechanism to the overall reaction course are proposed. Abstract : Nickel modified mixed-phase catalysts containing both mesoporous Al-MCM-41 and microporous ZSM-5 phases were synthesized via a one-pot synthesis. By varying the composition of the catalysts, optimum values regarding Si/Al ratio and nickel content for a highly selective dimerization of n -butenes were identified. An interaction of nickel sites with vicinal aluminum or acid sites can be assumed, since a correlation between Ni/(Al + Ni) ratio, catalytic activity and selectivity was found. Novel approaches to evaluate the contribution of the cationic or coordinative reaction mechanism to the overall reaction course are proposed.